Add DCIM (Dell Drac) as known class schema
Fix Fedora 18 build
Indicate in debug if IPv4 or IPv6 connect
Don't overwrite last_error, curl_init already sets it
Pass CURLE_BAD_FUNCTION_ARGUMENT up to caller
Fix curl_easy_setopt call for CURLOPT_SSL_VERIFYHOST, only values 2 or 0 are accepted
Update ChangeLog
Fix comment typos
XmlDoc#to_s alias to encode

to_s and to_xml were aliased to XmlDoc#string, but SWIG can only
handle one alias declaration per function.

This commit makes XmlDoc#to_s and alias for XmlDoc#encode
More (rdoc) documentation for XmlDoc, XmlNode, and XmlAttr